Very easy but still impressive. This is a great piano song. Intro is C/F/C/F and the verse is the same. If you are a beginner, it is probably easier to sing the melody of the verse and play the chords rather than play all the chords and the melody together (more advanced).
Work on the bass line and make sure it is rhythmic and accurate, otherwise the whole song will sound like a total messssss. Oh yessssss.
This is a duet performed by my 9-year-old student Emily and myself. She has only been playing for 6 months so this is a remarkable achievement. This recording was done in one take. Duets are a great way of progressing a student rapidly as they help with listening, counting, playing and with performing.